Image: Copernicus Sentinel-3A satellite watching Harvey

Image: Copernicus Sentinel-3A satellite watching Harvey
Credit: contains modified Copernicus Sentinel data (2017), processed by ESA, CC BY-SA 3.0 IGO

The Copernicus Sentinel-3A satellite saw the temperature at the top of Hurricane Harvey on 25 August 2017 at 04:06 GMT as the storm approached the US state of Texas.

The brightness temperature of the clouds at the top of the , some 12–15 km above the ocean, range from about –80°C near the eye of the storm to about 20°C at the edges.

Hurricanes are one of the forces of nature that can be tracked only by satellites, providing up-to-date imagery so that authorities know when to take precautionary measures. Satellites deliver information on a storm's extent, wind speed and path, and on key features such as cloud thickness, temperature, and water and ice content.

Sentinel-3's Sea and Land Surface Temperature Radiometer measures energy radiating from Earth's surface in nine spectral bands and two viewing angles.


Explore further

Image: Eye of the storm

Citation: Image: Copernicus Sentinel-3A satellite watching Harvey (2017, August 28) retrieved 18 June 2019 from https://phys.org/news/2017-08-image-copernicus-sentinel-3a-satellite-harvey.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
1 shares

Feedback to editors

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more